Title: How to Fix “Function is Not Defined” Error in Python - AskPython
Open Graph Title: How to Fix “Function is Not Defined” Error in Python - AskPython
X Title: How to Fix “Function is Not Defined” Error in Python - AskPython
Description: You write a script, hit run, and Python throws NameError at you. The traceback names a symbol you thought you had defined. You scroll up, the definition is
Open Graph Description: You write a script, hit run, and Python throws NameError at you. The traceback names a symbol you thought you had defined. You scroll up, the definition is
X Description: You write a script, hit run, and Python throws NameError at you. The traceback names a symbol you thought you had defined. You scroll up, the definition is
Opengraph URL: https://www.askpython.com/python/examples/fix-function-is-not-defined-error
X: @AskPython
Generator: WordPress 7.0
Domain: www.askpython.com
{"@context":"https://schema.org","@graph":[{"@type":["Person","Organization"],"@id":"https://www.askpython.com/#person","name":"Rnzo1zWtYm","sameAs":["https://twitter.com/AskPython"],"logo":{"@type":"ImageObject","@id":"https://www.askpython.com/#logo","url":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","contentUrl":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","caption":"Rnzo1zWtYm","inLanguage":"en-US"},"image":{"@type":"ImageObject","@id":"https://www.askpython.com/#logo","url":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","contentUrl":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","caption":"Rnzo1zWtYm","inLanguage":"en-US"}},{"@type":"WebSite","@id":"https://www.askpython.com/#website","url":"https://www.askpython.com","name":"Rnzo1zWtYm","publisher":{"@id":"https://www.askpython.com/#person"},"inLanguage":"en-US"},{"@type":"ImageObject","@id":"https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png","url":"https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png","width":"1200","height":"630","caption":"Featured Image For: How To Fix \u201cFunction Is Not Defined\u201d Error In Python","inLanguage":"en-US"},{"@type":"WebPage","@id":"https://www.askpython.com/python/examples/fix-function-is-not-defined-error#webpage","url":"https://www.askpython.com/python/examples/fix-function-is-not-defined-error","name":"How to Fix \u201cFunction is Not Defined\u201d Error in Python - AskPython","datePublished":"2026-07-07T12:00:00+00:00","dateModified":"2026-07-07T14:34:33+00:00","isPartOf":{"@id":"https://www.askpython.com/#website"},"primaryImageOfPage":{"@id":"https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png"},"inLanguage":"en-US"},{"@type":"Person","@id":"https://www.askpython.com/author/gurpreet","name":"Gurpreet Kaur","url":"https://www.askpython.com/author/gurpreet","image":{"@type":"ImageObject","@id":"https://secure.gravatar.com/avatar/631efaaae35353c335237ae00881507b73a6d355a263d59fec34a32e8698c72d?s=96&d=mm&r=g","url":"https://secure.gravatar.com/avatar/631efaaae35353c335237ae00881507b73a6d355a263d59fec34a32e8698c72d?s=96&d=mm&r=g","caption":"Gurpreet Kaur","inLanguage":"en-US"}},{"@type":"BlogPosting","headline":"How to Fix \u201cFunction is Not Defined\u201d Error in Python - AskPython","datePublished":"2026-07-07T12:00:00+00:00","dateModified":"2026-07-07T14:34:33+00:00","author":{"@id":"https://www.askpython.com/author/gurpreet","name":"Gurpreet Kaur"},"publisher":{"@id":"https://www.askpython.com/#person"},"description":"You write a script, hit run, and Python throws NameError at you. The traceback names a symbol you thought you had defined. You scroll up, the definition is","name":"How to Fix \u201cFunction is Not Defined\u201d Error in Python - AskPython","@id":"https://www.askpython.com/python/examples/fix-function-is-not-defined-error#richSnippet","isPartOf":{"@id":"https://www.askpython.com/python/examples/fix-function-is-not-defined-error#webpage"},"image":{"@id":"https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png"},"inLanguage":"en-US","mainEntityOfPage":{"@id":"https://www.askpython.com/python/examples/fix-function-is-not-defined-error#webpage"}}]}
| og:locale | en_US |
| og:type | article |
| og:site_name | AskPython |
| article:section | Python Programming Examples |
| og:updated_time | 2026-07-07T14:34:33+00:00 |
| og:image | https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png |
| og:image:secure_url | https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png |
| og:image:width | 1200 |
| og:image:height | 630 |
| og:image:alt | Featured Image For: How To Fix “Function Is Not Defined” Error In Python |
| og:image:type | image/png |
| article:published_time | 2026-07-07T12:00:00+00:00 |
| article:modified_time | 2026-07-07T14:34:33+00:00 |
| twitter:card | summary_large_image |
| twitter:creator | @AskPython |
| twitter:image | https://www.askpython.com/wp-content/uploads/2025/04/How_to_Fix__Function_is_Not_Defined__Err_1744318527.png |
| twitter:label1 | Written by |
| twitter:data1 | Gurpreet Kaur |
| twitter:label2 | Time to read |
| twitter:data2 | 4 minutes |
| msapplication-TileImage | https://www.askpython.com/wp-content/uploads/2019/12/cropped-favicon-1-270x270.png |
Links:
Viewport: width=device-width, initial-scale=1, maximum-scale=5, viewport-fit=cover
Robots: index, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large